Water-pressure regulator



(NoModeL) P. HARVEY.

WATER PRESSURE REGULATOR. No. 257,697. Patented Ma jQ, 1882.

Wii'n'e sses Inventor.

N4 PETERS. Phum-unwgn har. Wishmglon. D. c.

UNITED STATES PATENT OFF-I E;

PATRICK HARVEY, OFOHIOAGO, ILLINOIS.

WATER-PRESSU RE REGULATOR. I

SPECIFICATION formingpart of Letters Patent No. 257,697, dated May 9, 1882,

Application filed April 4, 1881. (3T0 model.)

To. all whom it may concern: I t

Be it known that I, PATRICK HARVEY, of Ghicago,in the county of Cook and State of Illinois, have invented anew and usefulWate'r- Pressure Regulator and I hereby declare the following to be a full, clear, and exact descriptionof the invention, which will enable others skilled in theart to which itappertains to make and use the same, reference being had to the accompanying; drawings, forming a part hereof, and in which Figure 1 represents a longitudinal and vertical central section of my improved hydraulic apparatus with the pistons and moving parts connected therewith at theirlower end'ot' travel and the water-ways open. Fig. 2 represents the same with the pistons and moving parts'connected therewith near the upper end of their stroke and the water-ways closed; andFig. 3 represents an arrangement of a lever connected I by a wire to the lever working the pistons, for

the purpose of operating the same for special purposes hereinafter mentioned. Like'lettersof reference indicate like parts. The object of my invention is to supply a combined pressure-regulator, relief, stop, and waste valve, the several parts of which are constructed, combined, and operated substantially as hereinafter described and shown. In the drawings, A represents a cylindrical shell,provided with an inlet-pipe, 6, connecting with the water-main, and an exit or house-supply pipe, f, and a waste or relief pipe, g.

Within the interior of the shell A, and immediately above the inlet 0 and below the pipe f, is fastened an annular ring, it", which forms a diaphragm, to which a short tube or cylinder, h','is attached, so as to project about equal distances above and below said diaphragm.

To the lower end of the shell A is attached and thereby forms a tight joint between the h. The packing a is held upon the flange m by the flanged nut m, and the packing l by one of the flanges 7c of the shell or sleeve slipped over the tube 11.

Against the lower flange k of the tube jis placed a self-packing washer, forming the piston l within the cylinder 1), and which is held in place by the flanged nution the.lower end of the tube '5'."

The tube 6 is pierced with several holes, 11", between the flanges m and m and may be made solid above said holes. Beyond the nut m the stem 01 is provided with a thread, 1', screwed into the rod 2. The part extending beyond the cap 0 is provided \vith'a slot, q, through which passes a lever,

-D, fulcrumed in the post 0', said post 0 being attached to a bracket, B, on the shell A.

The lever D is provided with an adjustable weight, 8, and at its end is connecteda wire, t, the other end of which is connected to a bell crank lover, a, by means of which the lever D may be raised and held bycatching the lever a in a notch or catch, a, in the upper part of the annular disk 2;. V The parts 8, a, r, and e are shown on a reduced'scale. All the other parts are shown.

full size, and the rod above the cap 0 is not shown in section.

The lever a may be located in any part of the house and connected by means oi he]!- cranks and wires to the lever D, which, with all the other parts of the apparatus, should be located in the basement, so that it, with its pipes, may be beyond thereach ot'i'rost, and so that thewaste-pipe 9 may be readily connected with a sewer-pipe.

The manner of operating my improvednhydraulic apparatus is as follows, to wit: To obtain a water-supply the lever D, by means of the lever a, is placed as shown in Fig. 1: The weight 8 being heavy enough to pull it down, water will then'pass through 6, h, andf, and

ICC

will be prevented from passing out through 9 by means of the piston a. Water also passes through the holes 1' and stem 2" into the chant ber h, where it gives an upward pressure proportionate to its head, which is balanced, or nearly so, by the exterior downward pressure tn the piston Z, but is in excess upwardin proportion as the areas of the pistons Z and n are to each other, and which would causethe pistons to rise if not counteracted by the lever D and its adjusted weight 8.

The weight 8 may be so regulated that so long as the water is being drawn fromfthe pistons will remain in their lower position; but

as soon as the flow is stopped the pressure against the pistons 12 and l willcause them to iise, and thus draw the piston linto the cylinder h, where it is held, and the-water-ways thereby closed until water is again drawn from f, thus forming an automatic pressure-regula- 'the under side of the pistons Z and 91,.tbus

raising themwith their adjusted weight still higher, as shown by the dotted outline ot' the lever 1), until the piston n relieves the same through the waste-pipe g into the sewer.

,When it is desired to drain the pi pef, either to prevent its freezing or for repairs the lever to is turned so as to catch in the notch a, and thereby raise the lever D beyond the position as now shown in Fig. 2, but indicated bytlie dotted outline thereofl'and thereby cause the piston n to rise still higher and open the passage through the pipe g, the lever a being so constructed as to cause the pistons to rise to the desired place, where they are permanentl v held until the lever a is again released from the notch a into the position as now shown.

It will be observed that the pistons Z and l are balanced against each other when thepisten or valve 1 is within its cylinder h, and that the upward pressure on the valve 1; is equal to that of the area of the chamber it plus the excess of area of the piston a over the piston l, or, in other words, is equal in area to the bore of the cylinder A. When, therefore, the water is allowed to flow from the pipef, it relieves the pressure against the piston n, and also against that of the piston l, by allowing it to flow out freely through 'i' 'and'tintof, and thereby permit the pistons port or pipe pass outside oftbe cylinder A from the bottom of the chamber it into the chamber formed between the pistons l and n.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,'is-

Apressurcregulator for liquids consisting of the following elements: first, a tubular shell closed at the ends and having lateral induct, educt, and relief openings, the educt being longitudinally between the other two;

second, three pistons fitted within suchshell,

rigidly attached to and moving with a single piston -stem,-which penetrates the end of the shell nearest to which is the relief-opening, the first or lowest piston playing below the i'uduct opening, the second or highest piston :playingabove the educt and to and beyond the relief-opening, and the third piston'being between the other two, situated and serving as a valve to open and close the induct; third, a condujt or waterway-opening into the piston-chamber at one end below the first piston and at the other. end between the other two pistons, and which may be either through the piston-stem or in the body ofvor exterior to theshell; fourth, a weighted lever, or its mechanical equivalent, adjusted against the out,- er end of the piston-stem, actuating itinward against the -\vater-p'ressure, all combined and operating substantially as set forth.

PATRICK HARVEY.

Witnesses: i

N. CowLEs, WM. ZIMMERMAN. 

